Finding the Fourth Proportional to 80,904.98, 121,363.62 and 27,580.40
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Solution
The fourth proportional to 80,904.98, 121,363.62 and 27,580.40 is: 41,372.70
Step by Step Solution
- Step 1: Write the proportion equation
80,904.98 : 121,363.62 = 27,580.40 : x - Step 2: Convert to fraction form
80,904.98/121,363.62 = 27,580.40/x - Step 3: Cross multiply
80,904.98x = 121,363.62 × 27,580.40 - Step 4: Simplify right side
80,904.98x = 3,347,257,185.05 - Step 5: Solve for x
x = 3,347,257,185.05/80,904.98 - Step 6: Final answer
x = 41,372.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.